when the material interface received strong impact,the large gradient zone or mutations of the pressure and velocity will appear on both sides,and in this case,the numerical simulation has become extremely difficult. Effect of strong impact on gas-gas and gas-liquid interface is studied numerically by Runge- Kutta discontinuous Galerkin method. Ghost fluid Method is r GFM and limiter is TVB limiter with M = 150,and the results showed that the impact is very easy to transfer to gas gas interface,and the impact of transmission is very difficult to through the gas-liquid interface; Error is very small when the impact of strong impact on the gas-liquid interface is on the numerical simulation,and the effect is good; The simulation of gas gas interface can capture the shock wave,but there are some error on the simulation of high density area,and it still need to continue to improve.